Portion of a shoe outsole



FIG. 1 is a top plan view of a portion of a shoe outsole showing my new design;

FIG. 2 is a front perspective view thereof; and,

FIG. 3 is a rear perspective view thereof.

The broken circles in the views, form the boundaries of the claimed design. The broken lines showing the remainder of the shoe illustrate the environment in which the design resides. Neither the broken lines, nor the areas within the circles, form any part of the claimed design. 

The ornamental design for a portion of a shoe outsole, as shown and described. 